An abutment connection is the connection between the prosthetic screw and the internal implant. An abutment driver, or hand driver, is used to apply force to the prosthetic screw as it is inserted into the internal implant. The force applied to the screw as it is being inserted is called preload, and how much force is used has a significant impact on the success of the finished implant. Too much or too little force can cause an implant to fail, and it is best for a periodontist to follow the manufacturer’s recommendations on each different type of screw because no standard amount of force exists. It differs from implant to implant. Sometimes an abutment holder is used to reduce the risk of dropping abutments into the patient’s mouth during the insertion of the implant. For an implant to be successful, the abutment connection must be strong.